Hands down the best 3D printable phone case for your iPhone 13 pro. I have been working on the design since the release of the phone, slowly tweaking it to get the fit just right.3D Printing Settings:Infill: 100%Top/Bottom Layers: 3Perimeter Shells: 2Support: Yes - it is needed on the inside overhang - consult pictureNozzle Diameter: 0.35 mmExtrusion Width: 0.4 mmLayer Height 0.2 mm